40m laser range finder module-manufacture,factory,supplier from China

Laser rangefinder (Laser rangefinder), is the use of modulation of a certain parameter of the laser to achieve the distance measurement of the target instrument.

When is it necessary to calculate the distance factor ratio and when is it not?

How to buy a good enough night vision device?Now, we start to share with you some dry facts to help people who wish to buy a night vision device to buy one that meets their requirements.Classification of night vision devices:First of all, Night Vision Devices (Night Vision Devices) are categorized into Infrared Night Vision (Infrared Night Vision), Laser Night Vision (Digital Night Vision) and Shimmer Night Vision (Image Intensifier). After testing these three types we can tell you with confidence that the Microlight Night Vision is the only night vision device worth buying.

As a global leader in optoelectronic equipment, Jovstar is committed to providing customers with cutting-edge products and solutions. Our diverse product portfolio includes multifunctional thermal imagers, handheld thermal imagers, and laser rangefinders, widely employed in security surveillance, outdoor hunting, industrial inspection, and power line inspection, among other fields.Jovstar has earned a stellar reputation worldwide for its exceptional product performance and unwavering reliability.

Infrared night vision device is the use of photoelectric conversion technology of military night vision device. It is divided into active and passive two kinds: the former with infrared searchlight irradiation target, receive reflected infrared radiation to form an image; the latter does not emit infrared, relying on the target's own infrared radiation to form a “thermal image”, so it is also known as the “thermal imaging camera”.Visible light at night is very weak, but infrared light, which is invisible to the human eye, is abundant.

Both plants, animals, humans, cars and objects emit heat. The defining characteristic of a thermal sensor is the detection of heat in response to small differences between thermal features in the image. So whether it's raining, sunny or completely dark, thermal imaging cameras provide clear thermal images. For this whole reason, thermal images characterized by high contrast are ideal for video analysis.Today, thermal imaging cameras are the monitoring solution of choice for nuclear power plants, substations, oil refineries and airports.

The differences between infrared thermography and low-light imaging are as follows:1. Imaging Principle:Infrared Thermography:It captures the infrared radiation emitted by objects and converts it into visible images. All objects above absolute zero emit infrared radiation, which can be detected and used to create a temperature distribution map, displaying the thermal image of the object. This technology does not require external light sources and can work in completely dark environments.Low-light Imaging:It relies on amplifying extremely weak ambient light, such as moonlight or starlight.

Why is it that infrared thermography can capture images in total darkness at night that we normally cannot see with the naked eye?Because everything with a temperature above absolute zero (-273°) emits infrared radiation. An infrared camera can convert the thermal radiation into a corresponding electrical signal, which is then amplified and processed to obtain a thermal image corresponding to the heat distribution on the surface of the object.

When purchasing a thermal imaging camera, there are many specifications for thermal imaging cameras. Looking at a single specification does not reflect the overall performance of the camera; the combination of specifications is what determines the performance of the camera. All specifications of a thermal imaging camera are important, but you can focus on some of them to make sure you buy the right equipment.ResolutionThe resolution of a thermal imaging camera is how many pixels are in the camera's detector.

To better ensure the normal operation of society, the installation of surveillance is essential, but the installation of a traditional visible light surveillance without image enhancement can become difficult when forensic review and video analytics performance is required, so it is possible to install a thermal imaging camera with 7 × 24 monitoring in some important occasions.Both plants, animals, humans, cars and objects emit heat. The defining characteristic of a thermal sensor is the detection of heat in response to small differences between thermal features in the image.